Analytical balance



E. K. METTLER E! AL Jan. 8, 1952 ANALYTICAL BALANCE 4 Sheets-Sheet 2Filed Sept. 21 1950 Fig.3.

Jan. 8, 1952 E. K. METTLER ET AL ANALYTICAL BALANCE 4 Sheets-Sheet 3Filed Sept. 21 1950 1952 E. K. METTLER EIAL 7 ANALYTICAL BALANCE FiledSept. 21, 1950 V 4 Sheets-Sheet 4 Fig.6. 13 I Patented Jan. 8, 1952ANALYTICAL BALANCE Erhard Kan Mettler, Zollikon, Zurich, and JohannMeier, Kusnacht, Zurich, Switzerland Application September 21, 1950,Serial No. 185,992

In Switzerland May 17, 1950 11 Claims (01. 265 54) This inventionrelates to an analytical balanceand more particularly to amicro-balance, comprising a carrier, a counter-bearing on the carrierfor supporting the centre knife edge of the balance beam duringoperation and an arrestment for relieving the knife edges on saidbalance beam from load, the arrestment including one or more movableparts provided with lifting members to lift the balance beam from saidcounterbearing and to lift the pan system from the corresponding knifeedges on the balance beam when the balance is not in use.

Objects of the invention are to provide an analytical balance of thetype stated in which the arrestment includes a movable part directlyprovidedwith lifting members to lift the balance beam and the pan systemsuspended on the balance beam, a plurality of articulated levers forguiding said movable part, and adjustable conical bearings with whichsaid articulated levers are arranged one above the other and linked onthe one hand to said carrier and on the other hand to said movable part,whereby a smooth up and down movement and a playless guiding of saidlifting members may be achieved. Objects are to provide, in ananalytical balance of the type stated, articulated levers arranged oneabove the other for guiding a movable part of the arrestment, one ofthese levers being linked to the foot portion of a carrier and anotherto the head portion of said carrier, said head portion being equippedwith the counter-bearing to support the centre knife edge of the balancebeam and the foot portion of said carrier bearing directly on thepedestal of the balance; the pedestal being provided-with an operatingarrangement comprising a push rod articulated on the one hand to saidmovable part and coupled on the other hand with manually operable meansfor moving the arrestment. A further object is to provide an analyticalbalance of the kind outlined and including a double pan system each partof which being suspended on a corresponding outer knife edge on thebalance beam, and an arrestment for relieving of load the said knifeedges; the arrestment comprising a movable part directly provided withtwo sets of lifting members to lift the double pan system from the knifeedges of the balance beam, a movable part directly provided with a setof lifting members to life the centre knife edge of the beam from thecounter-bearing on the carrier of the balance, two pairs of articulatedlevers for guiding said movable parts, bearings with which each of saidlevers are linked on the one hand to said carrier and on the other handto the corresponding movable part, and manually operable meanscomprising a rotable shaft equipped with two eccentrics of unequaleccentricity, the movable part of the arrestment which is provided withthe two sets of lifting members to lift the double pan system beingmoved by the eccentric having the greater eccentricity, and the movablepart of the arrestment which is provided with the set of lifting membersto lift the balance beam being moved by the eccentric having the smallereccentricity. Yet another and more specific object is a microbalance ofthe character described and comprising a carrier, a counter-bearingmounted thereon, a single pan. system suspended on an outer knife edgeon one arm of the balance beam, a fixed counter-weight mounted on theother arm of the balance beam and an arrestment for relieving the saidtwo knife edges from load, the arrestment including only one movablepart directly provided with the lifting members to lift the asymmetricalbeam from the counter-bearing and with lifting members to lift thesingle pan system from the outer knife edge on said beam, a pair ofarticulated levers for guiding said movable part, bearings with whichthe articulated levers are arranged one above the other and linked onthe one hand to said carrier and on the other hand to said movable part,and manually operable means including a rotatable drive shaft and aneccentric mounted thereon formoving said arrestment.

These and other objects and the advantages of the invention will best beunderstood from the following description of specific embodiments whenread in connection with the accompanying drawing, wherein like referencecharacters indicate like parts throughout the several figures and inwhich:

Fig. 1 shows a constructional form of an analytical balance having asymmetrical beam and two pans which are suspended from the two outerknife edges of the beam;

Figures 2 to 4 show in plan view separate parts of the balance shown inFig. 1;

Fig. 5 shows a further constructional form of a micro-balance having anasymmetrical beam, in which one pan is suspended only from one arm ofthe beam on the outer knife edge thereof, while the other arm of thebeam is provided with a fixed counter-weight, and

Figures 6 to 8 show in plan view separate parts of the balance shown inFig. 5.

In the balance shown in Figures 1 to 4, there is secured to the baseplate I of the pedestal 2,

3 which is shown in section, a carrier consisting of a plate-like footportion 3, a head portion 4- separately shown in Fig. 2--and pillars 5,6, 1 and 8 rigidly secured thereto. The foot portion 3 of the carrier,like the base plate I, is shown partly in section, and the pillars and 5above the base plate I are accordingly shown in fragmentary form. Thecarrier consisting of the foot portion 3, the pillars 5 to B and thehead portion 4 may be either made in one piece or assembled from thevarious parts shown by screwing. The head portion 4 of the carrierconsists (Fig. 2) of two downwardly bent projecting arms 3 and [0, whichare connected together by tie bars H and I2. Mounted on the tie bar I2(Figures 1 and 2) is the bearing l3 for supporting during operation thecentre knife edge IQ of the beam l5. The suspension system (Fig. 1)consisting of two identical parts is hung on the two outer knife edgesl6 and I3 of the beam. Each part of the suspension system contains apan' I1, H, a supporting link l3, l3, a supporting stirrup i3, 53'(shown broken through for the sake of clarity), a supporting plate 25,23and a plane bearing 2|, 2|. The beam l5 also has two extensions 22 and22 extending perpendicularly to the drawing plane (Fig. 1), which haverecessed guideways (not shown) in which the lifting pins 23, 24, 25engage in the arrested position of the beam in the manner of the knownthree-point support (Figures 1 and 3). The supporting plates 23 and 23'also have recessed guideways (not shown) in which the lifting pins 23,21, 23 and 26, 21', 28 (Figures 1 and 4) engage when the suspensionsystem is in the arrested position, also in the manner of a threepointsupport.

The lifting pins 23, 24, 25 serving to arrest the beam l5 are mounted onan upwardly bent platelik portion 29, the form of which will be seenfrom Figures 1 and 3. The bent-over plate 29 is mounted in turn on aflange 30 which extends laterally between the pillars 5 and 1 on the onehand and the pillars 6 and 8 on the other hand (Fig. 3). Furthermore,the flange 33 is connected to the rod 3| which extends between thepillars 5 to 3 in a direction parallel to the said pillars. Thebent-over plate 29, the flange 3 0 and the rod 3| form that movable partof the arrestment which is provided for lifting the beam l5, and whichis provided at the lower end of the rod 3| with a further flange 32,which'may be of identical construction to the upper flange 33. Thismovable part 23 to 32 of the arrest ment is guided by two articulatedlevers 33 and 34 preferably of identical form. In Fig. 3, thearticulated lever 34 is shown in plan view in which the H-form thereofcan be seen." The two articulated levers 33 and 34 have at their freeends screws 35, the forward portions of which are conical and by meansof which they are movably linked on the one hand to the flanges so and32 of the movable part of the arrestment and on the other hand to theprojecting arms 3 and Hi of the head portion 4 and to the noselikeextensions 33 of the foot portion 3 of the support. The screws 35 engagein suitably fashioned conical guideways provided in the flanges 33 and32, in the projecting arms '9 and at and in the nose like extensions 33of the foot portion (Figures 1 to 3).. The screws 35 are also providedwith lock nuts (not shown), by means of which the screws 35 are fixedinfthe usual way in the position to which they are adjusted. The screws35 and the suitably fashioned conical recesses in the counter-bearingsmay naturally be replaced by adjustable conical bearings of other form,by which the articulated levers 33 and 34 are articulated to the carrierand to the movable part of the arrestment. The conical bearings may besnugly tightened so that the movable part 29 to 32 and consequently thelifting .pins'23, 24, 25 have no play either in the direction parallelto the knife edge I4 of the beam or in the direction parallel to thebeam arms when moving upwardly or downwardly. When the ,arrestment isreleased, that is, when the movable part 29 to 32 is lowered, the knifeedge 14 of the beam l5 is thus always brought to rest on the planebearing l3 in exactly the same way. In order also to obtain a smoothmovement ,of the movable part 29 to 32 when the screws 35 are firmlytightened, there is articulated to the lower end of this part, i. e. tothe flang 32, a push rod 31 which is positively moved by an operatingshaft 38 and an eccentric 39 mounted thereon.

Similarly, the arrestment has a further move able part 40, 4!, 42, 43,on which are directly provided the lifting pins 26, 21, 28 and 25', 21-,28 provided for lifting the suspension system. The said lifting pins aremounted on an upwardly bent plate-like part 40 which is secured by theflange 4! (Figures 1, 4) to the tube 42, which has on its lower end afurther flange 43,. The two flanges 4i and 43, which are of identicalform, can be movably clamped on the tube 42, the flange 4| projectinglaterally between the pillars 5, 1 and 6, 8, as shown Fig. 4. Thisfurther movable part 40 to 43 of the arrestment is guided by twoarticulated levers 44 and 45, wh h are imated one below the other andpreferabl have equal dimensions, in the same way as the articue latedlevers 33 and 34. The levers 44 and 45 are movably articulated by meansby conical bear ings on the one hand to the flanges 4| and 43 and on theother hand to the tie bar M (Fig. 4) and to the nose-like extensions 36,of the foot portion 3. The adjustable conical bearings are representedby screws 46, the. front portions of w ich are conical and which engagein corresponding recesses in the flanges M and 43 and in the 82ktensions 36, as also in the tie. bar ll (Figures 1 and 4),. Alsoarticulated to the lower flange. 43 is a push rod 41 (Fig. 1) which ispositively mQved, by the eccentric 48. The screws 46 may also befirmlytightened, so thatv the movable part 43 to, 43. has no play either inthe direction parallel K2. the arms of the beam l5 or in the directionpar-al lel to the knife edges l4, l6 and it when moved about the fixedpivot points of the levers 44 and 45, The two, eccentrics 39 and 48mounted on the dr e shaft 38 pref a ly ve qua diam: eter, but aremounted with different eccentricity on the shaft 38, the eccentricity ofth eccentric 48- being greater than that of the eccentric, 33. so. t hemp t e f mo eme t o the P rt 40 to 43 is accordingly greater than thatof the part 29 to. 32 when the shaft 38 is rotated. The v drive shaft38, which is only partially shown, is

mounted on the one hand in a rib-like extension r vi d o the l Po n 3 ano th other handin a plain bearing (not shown).- situated on the forwardportion of the pedestal; 2 and has on its part projectingbeyond thepedes tal 2 the usual operating knob (also not shown) by which thewhole. arrestment is actuated.

The length of the lifting pins. 23 to 2501 the onehand and that of thlifting'pins 2 6, to 2,8, and 26} to, 28 on the, other hand is such thatwhen,

the eccentrics 39 and 48 are in the uppermost position the centre knifeedge I4 of the beam is lifted from the counter-bearing I3 and the planebearings 2| and 2| are lifted from the outer knife edges I6 and I6 ofthe beam. When the arrestment is released by rotation of the shaft 38,the suspension system provided with the pans IT and I1 is put on theouter knife edges I6 and I6 of the beam and is thereafter released bythe lifting pins 26 to 28 and 26 to 28. The beam I5 then still lies onthe lifting pins 23 to 25. Thus, the suspension system is always laid inexactly the same manner onthe outer knife edges I6 and I6. On furtherrotation of the shaft 38, all the lifting pins descend further until thecentre knife edge |4 also is put on the plane bearing I3. The positionthus occupied by the beam, the suspension system and the arrestment isshown in Fig. 1. Finally, if the shaft 38 is turned until the eccentrics39 and 48 occupy their lowermost position, the pins 23 to 25 alsorelease the beam which then rocks freely about its zero position on thecentre knife edge l4, provided that the pans I1 and I7 are not loaded.Conversely, on turning the shaft 38 to carry the eccentrics 39 and 48 totheir uppermost positions, the beam is first lifted from the bearing I3and then the outer knife edges I6 and I6 are relieved of load by liftingof the entire suspension system.

Particular attention is called to the fact, that the up and downmovement of the movable part of the arrestment has hitherto usually beenguided by means of plain bearings situated in a central pillar of thebalance. The movement of the arrestment, which takes place vertically,must take place easily and without the slightest hindrance, as otherwiserebounding and even damage to the knife edges of the beam may occur onrelease of the arrestment, that is, when the centre knife edge is put onthe counter-bearing and when the pan system is put on the outer knifeedges. A certain, very small play is therefore unavoidable in the saidplain bearings if the movable part of the arrestment is to be capable ofmoving smoothly up and down. The lateral component of this play, whichis in the direction of the arms of the beam, results however in thecounter-bearings of the pan system never being applied in exactly thesame manner to the outer knife'edges of the beam. More especially, thesaid counter-bearings are not always applied exactly at their centre, sothat they occupy a slightly inclined position, which varies in eachinstance. This variable inclination of the bearings of the suspensionsystem produces variable active leverages on the beam owing to thesmall, but unavoidable width of the edge of the outer knife edges on thebeam, whereby the accuracy of the balance is obviously impaired. If, onthe other hand, the up and down movement of the various parts of thearrestment is guided by articulated levers 33, 34 and 44, 45 as shown inFigures 1 to 4, the playless guiding of the movable parts of thearresting arrangement ensures that the length of the effective arms ofthe beam, i. e. the distance between the lines along which thecounter-bearings I3, 2|, 2| lie against the corresponding knife edgesl4, I6, I6, remain constant with great precision, whereby the accuracyof the balance is accordingly increased. Moreover, the knife edges ofthe beam are preserved because if the articulated levers are suitablyarranged, the counter-bearings I3, 2|, 2| can be put on thecorresponding knife edges in an exactly vertical direction.

6 "The'use of the movable parts of the arresting arrangement which areguided by articulated levers is especially advantageous in the case ofbalances which have a beam having unequal arms, the entire suspensionsystem being suspended from one arm of the beam, while a constantcounter-weight is secured to the other arm. In such balances, which canmore especially be constructed as micro-balances, both the article to beweighted and the weights are laid on the one pan, so that the beam isalways under a constant load when in its zero position. Since in suchbalances the length of the effective arm of the beam which is providedwith the counter-weight is constant in itself, it only remains to ensurethat the effective length of the other beam arm provided with the singlepan system remains constant. As will hereinafter be described withreference to Figures 5 to 8, such a balance only requires for thearrestment a single movable part which is guided by articulated leversarranged one above the other and on which all the lifting pins requiredfor the arrestment of the suspension system and for the arrestment ofthe beam maybe provided. It is obvious that a considerable saving ofstructural elements is thus effected and the construction of the wholebalance becomes simple and compact.

- The micro-balance shown in Figures 5 to 8 has a pedestal 2, on thebase plate I of which inwardly projecting ribs 50 are provided, whichserve as a bearing for the drive shaft 38 of the arrestment. In Fig. 5,only one of these ribs 50 is'shown, and theshaft 38 is only partlyillustrated, while that part of the shaft which extends beyond the wallof the pedestal, and the operating button have been omitted for the sakeof clarity. Mounted on the base plate |shown in sectionof the pedestal 2is the carrier, which consits of a plate-like foot portion 3, a headportion 4 (shown in fragmentary form in Fig. 6) and the pillars 5, I, 8.The foot portion 3 of the carrier is shown partially in section and theforward pillar 5 is accordingly shown in fragmentary form (Fig. 5). Thehead portion 4 of the carrier (Fig. 6) consists of the two arms 9 and I0and the cross members II and I2. As will be seen from the plan view ofthis head portion shown in Fig. 6, this head portion is in the form of afiat frame, the cross member I2 which extends above the arms 9 and I0supporting the counter-bearing I3 for the knife edge M of the beam l5(Fig. 5). The other cross member II has downwardly extendingprojections'El, which are situated exactly above the upwardly directedprojections 36- of the foot portion. In operation, the centre knife edgeI4 of the beam I5 bears against the plane bearing I3, the left arm ofthe beam having an outer knife edge I6, on which is suspended the entiresuspension system, which consists of the counter-bearing 2|, the bearingplate 20, the supporting stirrup I9, the supporing'links 8 and the panII. The stirrup I9 is shown only in fragmentary form for the sake ofclarity. The right-hand longer arm of the beam is provided with a fixedcounter-weight 52 and an extension 22 perpendicular to the plane of thedrawing (Fig. 5), while the lefthand shorter arm has a pin-likethickening 53. The extension 22 and the thickening 53 have on theirlower faces recessed guideways (not shown), in which the set of liftingpins 23, 24, 25 engage to formv athree-point mounting (Fig. 'I) when thebeam I5 is in the arrested position. The bearing plate 20also has suchrecessed guideways "(not shown), inv which the lifting pins 26, 2'1, 28.similarly engage in the form-of a. threepoint mounting (Fig. 7) when thesuspension sys-. tem is. in the arrested position. The said sets oflifting pins. are all arranged on a common plate-like part 29 (Figuresand 7) in which a. recess is formed, the said; part being rigidlysecured tov a flange 5 8, which is in. turn rigidly secured to .a tube42. Moreover, two further flanges 4| and. 43 are adjustably. clamped.tothe tube 4.2 by means of set screws 55' Of the two flanges, which areidentical,- the upper flange 4| is'shown in plan view inFig. 8- Theplate 29, the flanges ll, 43,. 541 and the tube. 42 thus con-- stitute.the movable part of the arrestment, guided by means of the. two.articulated levers 44:; and 45 (Fig. 5) arranged one above the other.The Hi-shaped levers 4t and 65 have on their free arms screws 48 whichare conical at. their forward ends, and are linked on the one. hand to.the flanges 4i and 43 and one the other hand to the projections 58 and36 without play in the manner already described, sothat the tube 42 and.consequently the entire movable part of the arrestment can be moved upand down in the manner of an parallelogram-like guiding... A pusn: rod41. engaging in the bottom of the tube 42 transmits through the. pin 56and the eccentric 48 the movements determined by the rotation of thedrive shaft 38.

' When the eccentric 38 is in the uppermost position, the centre. knife.edge i4 is lifted from the counter-bearing l3 and the beam [5 rests onthe lifting pins 23 to 25. The other lifting pins 26 to 28 are so muchlonger that when the beam I5 is arrested the counter-bearing 21 islifted from the knife edge [6 and the pan system i? to 2|. lies on thelifting pins 26 to 28. In this arrested position, however, the distancebetween the lifted knife edge l4 and the counter-bearing l3 and thedistance between the lifted counter:- bearing 2| and the knife edge [6only amount to a few tenths of a millimetre. When the arrestment isremoved, i. e. the eccentric 48 is turned towards its lowermostposition, the centre knife edge I4 is simultaneously deposited on thecounter-bearing l3 and the suspension system is deposited on the knifeedge IS. The lifting. pins then descend further and the pins 26 to 28completely release. the suspension system, the pin 23-. also beingretracted from the left-hand arm of. the beam. However, when the pan I1is unloaded, the right-handv arm of the beam con.- tinues to rest on thetwo lifting pins 24 and and. simultaneously on its centre knife edge l4,owing to the action of the counter-weight 52. This position is shown inFig. 5. A similar position is obviously also obtained when the eccentric48 is in the lowermost position, with the difference that allthe-lifting pins have been moved somewhat further downwards and the beamhas turned slightly in the clockwise direction on the knife edge Hi.Moreover, the required movementduring the engagement or disengagement ofthe arrestment can be permanently adjusted by suitable adjustment of theflanges 4| and 43 along. the tube 42 by means of'the screws 55.

The playless guiding of that part of the arrestment which carries thelifting pins also makes it possible in the balance shown in Figures 5 to8 to make the left-hand arm, of the beam ofv the required length, sincethe suspension system is always. applied in exactly the same manner withrespect to the two knife edges of the beam. The accuracy of the balanceis accordingly high. It 'is especialy desirable that the carrierconsisting of the heading. and footportionsand the pillars may bereadilyconstructed. as a very rigid. structure and can be mounted on thepedestal. of the balance in one piece. Since. those parts. of the.arrestment whichcarry the.- lifting pins are also articulated to therigid. carrier, scarcely any influence can be exerted on the movementsduring the operation of the arrestment once they have been adjusted, sothat for this reason also the accuracy of the balance is renderedsubstantiallyindependent of, external mechanical action as for examplemild shocks and the like. g,

The invention is not limited to the particular embodiments herein shownand described. For a balance having a high accuracy it may be advisableto provide; a housing. which encloses the beam and the suspensionsystem. This and other modifications which may occur to those familiarwith the art fall within the spirit and scope of the invention as setforth in the. following claims.

We claim:

1. An analytical balance, comprising a balance beam, a pan system, saidbalance beam having a centre. knife edge for its support and an outerknife edge for suspension of the pan system therefrom, a carrier, acounter-bearing on said carrier for supporting the. centre knife edge ofthe balance beam during operation, and an arrestment for relieving theknife edges on said balance beam from load, said arrestment including amovable part directly provided with lifting members to lift the pansystem suspended on the balance beam, articulated levers for guidingsaid movable part, and bearings with which said articulated levers arearranged. one above the other and linked. on the one hand to saidcarrier and on the other hand. to said movable part.

2, The invention as recited. in claim 1, wherein each of saidarticulated levers is linked on :the one hand to the associated movablepart of the arrestment by means of a pair of adjustable conical bearingsand on the other hand to said carrier by means of a second pair ofadjustable conical bearings.

3-. The invention as recited. in claim. 2,. wherein the spindles of saidadjustableconica-l bearings extend horizontally and thearticulated-levers extend at least approximately parallel to the (11''.rection'of the balance beam.

4. The invention as recited in claim 1, in combination with a pedestalfor supporting said balance, and wherein one of said articulated leversarranged one above the other is linked to the foot portion. of saidcarrier and another to the head portion of said carrier, the headportion of said carrier being provided. with the counterbearing forsupporting the centre knife edge of the. balance beam and the footportion of said carrier bearing. on the pedestal of the balance.

5. The invention as recitedin claim 4, wherein the pedestal of thebalance is provided with an operating. arrangement comprising a push rodarticulated on the one hand to said movable part provided with liftingmembers and coupled on the other hand with maunally operabe. means formoving, said arrestment.

6. The invention as recited in claim 1, wherein said movable part. ofthe. arrestment comprisesa plate-like head portionv "to which saidlifting members are directly secured, a rod extending at leastapproximately parallel to the direction.

of said carrier and secured to said head portion, and two flangesfastened to said rod, each of said flanges being linked by means of apair of hearings to one of said articulated levers lying one above theother.

7. the invention as recited in claim 6, wherein at least one of saidflanges is detachably clamped to said rod.

8. An analytical balance, comprising a doublearmed balance beam having acentre knife edge and outer knife edge, a carrier, 9, counter-bearing onsaid carrier for supporting the centre knife edge of the balance beam, adouble pan system each part of which being suspended on a correspondingouter knife edge mounted on the two arms of the balance beam, and anarrestment for relieving the said three knife edges from load, saidarrestment including a movable part directly provided with two sets oflifting members to lift the double pan system from the correspondingknife edges of the balance beam, a further movable part directlyprovided with a set of lifting members to lift the balance beam fromsaid counter-bearing, two pairs of articulated levers for guiding therespective movable parts, and bearings with which each of saidarticulated levers is linked on the one hand to said carrier and one theother hand to the corresponding movable part.

9. The invention as recited in claim 8, in combination with manuallyoperable means for moving said arrestment, said means including arotatable shaft equipped with two eccentrics of unequal eccentricity,the movable part of the arrestment which is provided with the two setsof lifting members to lift the double pan system being moved by theeccentric having the greater eccentricity and the movable part of thearrestment which is provided with the set of lifting members to lift thebalance beam being moved by the eccentric having the smallereccentricity.

10. An analytical balance, comprising a doublearmed balance beam havinga centre knife edge and an outer knife edge on one of its arms, acarrier, a counter-bearing on said carrier for supporting the centreknife edge of the balance beam during operation, a single pan systemsuspended on said outer knife edge mounted on one arm of the balancebeam and a fixed counterweight mounted on the other arm of the balancebeam, and an arrestment for relieving the said two knife edges fromload, said arrestment including only one movable part directly providedwith the lifting members to lift the beam from the counter-bearing andwith lifting members to lift the pan system from the outer knife edge onthe beam, a pair of articulated levers for guiding said movable part,and bearings with which said articulated levers are arranged one abovethe other and linked on the one hand to said carrier and on the otherhand to said movable part.

11. The invention as recited in claim 10, in combination with manuallyoperable means for moving said arrestment, said means including arotatable shaft, and an eccentric mounted on said shaft for actuatingthe movable part of the arrestment.

ERHARD KARL METTLER. JOHANN MEIER.

No references cited.

